June 17 » Boxer Rebellion: Western Allied and Japanese forces capture the Taku Forts in Tianjin, China.
June 20 » Boxer Rebellion: The Imperial Chinese Army begins a 55-day siege of the Legation Quarter in Beijing, China.
July 9 » The Governor of Shanxi province in North China orders the execution of 45 foreign Christian missionaries and local church members, including children.
August 3 » The Firestone Tire and Rubber Company is founded.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage May 5, 1923
The temperature on May 5, 1923 was between 12.3 °C and 28.3 °C and averaged 20.2 °C. There was 10.3 hours of sunshine (68%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
April 18 » Yankee Stadium: "The House that Ruth Built" opens.
April 26 » The Duke of York weds Lady Elizabeth Bowes-Lyon at Westminster Abbey.
June 9 » Bulgaria's military takes over the government in a coup.
July 24 » The Treaty of Lausanne, settling the boundaries of modern Turkey, is signed in Switzerland by Greece, Bulgaria and other countries that fought in World War I.
September 29 » The British Mandate for Palestine takes effect, creating Mandatory Palestine.
September 29 » The First American Track & Field championships for women are held.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I78012.php : accessed December 28, 2025), "Alle Douma (1900-1984)".
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